<template>
  <ul class="todo-list">
    <!-- completed: 完成的类名 -->
    <li :class="{completed:obj.isDone}"  v-for="obj in arr" :key="obj.id" >
      <div class="view">
        <input class="toggle" type="checkbox" v-model="obj.isDone" />
        <label>{{obj.name}}</label>
        <button class="destroy" @click="delBtn(obj.id)"></button>
      </div>
    </li>
  </ul>
  
</template>

<script>
export default {
  props:{
    arr:[]
  },
  methods:{
    delBtn(ind){
       this.$emit('delFn',ind)
    }
  }
}
</script>